"What an astonishing thing a book is. It‘s a flat object made from a tree with flexible parts on which are imprinted lots of funny dark squiggles. But one glance at it and you are inside the mind of another person, maybe somebody dead for thousands of years. Across the millennia, an author is speaking clearly and silently inside your head, directly to you. Writing is perhaps the greatest of human inventions, binding together people who never knew each other, citizens of distant epochs. Books break the shackles of time. A book is proof that humans are capable of working magic."
The above is a beautiful quote by Carl Sagan, sourced from
https://www.facebook.com/media/set/?set=a.456449604376056.98921.367116489976035&type=1
A gentlemen when introducing Radhanath Swami and his book THE JOURNEY HOME, speaks about the role of a book, at http://agathiyarvanam.blogspot.com/2014/03/engum-unthan-karunai.html.
Indeed when reading a book, one is taken into the inner realms or being of another person, exploring as in the modern day Role Playing Games, the author's mind.
Similarly the Siddhas have never failed to document their findings for the benefit of mankind. Kunangkudi Maasthaan Sahib, among his many other works, has written 100 verses in his AGASTHIYAR SATAKAM, specifically on Agathiyar. In these songs he puts forward his numerous requests to his Guru Agathiyar, seeking enlightenment.
Radhakrishnan R.A.V has uploaded photos of Kunangkudi Maasthaan Sahib's Dargah at http://18siddhar.blogspot.com/2013/12/kunangudi-masthan-sahib.html
A friend is currently translating works of Agathiyar and Shivavakiyar for the benefit of non-Tamil speaking devotees. She is doing an excellent job at https://plus.google.com/112429198887368185631/posts and https://plus.google.com/102383883723707919971/posts, respectively.
Ramalinga Adigal too has written more then 6,000 songs, later compiled as the THIRUVARUTPA. The cream of these songs is the AGAVAL.
The Agaval of Ramalinga Adigal
Ramalinga Adigal follows closely the works of Manikavasagar, the TIRUVASAGAM, available at http://www.scribd.com/doc/214070212/Thiruvasagam. We see similarities in the expression of devotion or bakthi.